A search for the rare leptonic decays B → μ νμ and B → e νe

N Satoyama; K Abe; I Adachi; H Aihara; D Anipko; AM Bakich; E Barberio; I Bedny; K Belous; U Bitenc; I Bizjak; A Bondar; A Bozek; M Bračko; TE Browder; MC Chang; P Chang; A Chen; WT Chen; BG Cheon; R Chistov; Y Choi; YK Choi; S Cole; J Dalseno; M Dash; A Drutskoy; S Eidelman; S Fratina; N Gabyshev; T Gershon; A Go; G Gokhroo; H Ha; J Haba; Y Hasegawa; K Hayasaka; D Heffernan; T Hokuue; Y Hoshi; S Hou; WS Hou; T Iijima; K Ikado; K Inami; A Ishikawa; R Itoh; M Iwasaki; Y Iwasaki; JH Kang; SU Kataoka; N Katayama; H Kawai; T Kawasaki; HR Khan; H Kichimi; HJ Kim; SK Kim; YJ Kim; K Kinoshita; S Korpar; P Križan; P Krokovny; R Kumar; CC Kuo; A Kuzmin; YJ Kwon; JS Lange; G Leder; MJ Lee; T Lesiak; A Limosani; SW Lin; D Liventsev; G Majumder; T Matsumoto; S McOnie; H Miyake; H Miyata; Y Miyazaki; R Mizuk; T Mori; T Nagamine; I Nakamura; E Nakano; M Nakao; H Nakazawa; Z Natkaniec; S Nishida; O Nitoh; S Noguchi; T Nozaki; S Ogawa; T Ohshima; S Okuno; Y Onuki; H Ozaki; P Pakhlov; G Pakhlova; H Park

Journal article

A search for the rare leptonic decays B → μ νμ and B → e νe

N Satoyama, K Abe, I Adachi, H Aihara, D Anipko, AM Bakich, E Barberio, I Bedny, K Belous, U Bitenc, I Bizjak, A Bondar, A Bozek, M Bračko, TE Browder, MC Chang, P Chang, A Chen, WT Chen, BG Cheon Show all

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics | Published : 2007

DOI: 10.1016/j.physletb.2007.01.068

Abstract

We present a search for the decays B+ → μ+ νμ and B+ → e+ νe in a 253 fb-1 data sample collected at the Υ{hooked} (4 S) resonance with the Belle detector at the KEKB asymmetric-energy B factory. We find no significant evidence for a signal and set 90% confidence level upper limits of B (B+ → μ+ νμ) < 1.7 × 10-6 and B (B+ → e+ νe) < 9.8 × 10-7. © 2007 Elsevier B.V. All rights reserved.